CN105010384A - Doramectin and pyrethroid insecticide composition - Google Patents
Doramectin and pyrethroid insecticide composition Download PDFInfo
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- CN105010384A CN105010384A CN201510306209.5A CN201510306209A CN105010384A CN 105010384 A CN105010384 A CN 105010384A CN 201510306209 A CN201510306209 A CN 201510306209A CN 105010384 A CN105010384 A CN 105010384A
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- doractin
- pyrethroid
- doramectin
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Abstract
The present invention discloses a doramectin and pyrethroid (deltamethrin, fenpropathrin, bifenthrin, beta-cypermethrin, lambda-cyhalothrin or the like ) insecticide composition. The doramectin and pyrethroid insecticide composition in the technical plan mainly comprises 0.3-8% of doramectin and 1-30% of pyrethroids that are active ingredients, a wetting dispersant, a thickener, a stabilizer, an antifreezing agent, a defoamer and deionized water, and these components are prepared into a suspending agent formulation or a water dispersible granule formulation. The doramectin and pyrethroid insecticide composition provided by the present invention has good compatibility and high suspensibility of effective substances, meanwhile has a high adhesion rate and a long efficacy in rainwater washing tolerance during the use, and is dust free and solvent free, thereby, the environmental pollution is less and security is higher. During production and application of the present doramectin and pyrethroid insecticide composition, not only the insecticidal spectrum of the active ingredients is improved, but also the biological activity of the active ingredients is increased.
Description
[technical field] the present invention relates to a kind of insecticides, especially a kind of insecticides containing doractin and pyrethroid (decis, fenpropathrin, Biphenthrin, beta-cypermethrin, gamma cyhalothrin etc.).
[technical background] doractin (english common name Doramectin, chemical molecular formula C
50h
74o
14), have insects and mites, nematode and tag and stomach poison function, and have faint fumigation action, without systemic action, but have very strong osmosis to blade, subepidermal insect can be killed, and the longevity of residure is long.Its mechanism of action and general insecticide disturb neurophysiology movable unlike it, stimulate release r-aminobutyric acid, and r-aminobutyric acid have inhibitory action to arthropodan nerve conduction, little to the damage of beneficial insect.
Pyrethroid pesticide is that the Organophosphorus and carbamate pesticides that continues has biologically active excellence, the good insecticides of Environmental compatibility, occupy very high share in the international market, it has efficiently, low toxicity, low-residual, low resistance, wide spectrum, environment compatibility are good, advantages such as phobotaxis is strong and having are tagged and stomach poison function, to the insect pest of many crops and mite evil with good control efficiency, and the lasting period is long.
At present, the use of the pesticidal preparations of this two type is all liquid formulation, mainly based on missible oil, in the process of processing missible oil, needs a large amount of organic solvents, as benzene,toluene,xylene etc.A large amount of uses of organic solvent not only cause the waste of industrial chemicals, meanwhile, return environment and human health brings very large threat.In recent years, in some developed countries, forbidding part organic solvent has been proposed.Therefore exploitation reduces or gets rid of the new liquid formulation of these organic solvents, has become a kind of imperative trend, and wherein preparation water baseization is exactly one of important directions of formulations of pesticide development.
[summary of the invention] object of the present invention is exactly to overcome environmental pollution that prior art exists, is detrimental to health and the shortcoming such as use cost is high and a kind of water fluid of developing, doractin and pyrethroid (decis, fenpropathrin, Biphenthrin, beta-cypermethrin, gamma cyhalothrin etc.) are dispersed in water by the physical dispersion effect of dispersant and sand mill by it, particle average size is generally 1-3 micron, has good mobility, dispersiveness, plate-out ability and biologically active; Be convenient to metering and use; Processing and use in without dust from flying, therefore to operate and user and environment all safer.
The object of the invention is to be realized by following technical scheme, doractin and pyrethroid (decis, fenpropathrin, Biphenthrin, beta-cypermethrin, gamma cyhalothrin etc.) doractin that contains of insecticides and pyrethroid (decis, fenpropathrin, Biphenthrin, beta-cypermethrin, gamma cyhalothrin etc.), by active component doractin and pyrethroid (decis, fenpropathrin, Biphenthrin, beta-cypermethrin, gamma cyhalothrin etc.), and wetting dispersing agent, thickener, stabilizing agent, antifreezing agent, defoamer and deionized water are mixed with suspending agent, the percentage by weight of wherein said each component is,
Wherein, the optimum weight ratio of component doractin and pyrethroid (decis, fenpropathrin, Biphenthrin, beta-cypermethrin, gamma cyhalothrin etc.) is 1: 1-30; Described wetting dispersing agent is any one or more composition in alkyl naphthalene formaldehyde condensate sulfonates, alkylphenol polyoxyethylene formaldehyde condensation products phosphate (SOPA), alkylphenol polyoxyethylene phosphate (FLS), phenethyl phenol polyethenoxy base ether phosphate (2210), polyoxyethylene polyoxypropylene base ether block copolymers.Described thickener is xanthans, carboxymethyl cellulose, polyvinyl alcohol, bentonite, silicic acid buy one any in aluminium.Described stabilizing agent is one or more in Sodium Benzoate, sodium sorbate, formaldehyde.Described antifreezing agent is one or more of ethylene glycol, propane diols, glycerine etc.Described defoamer is silicone based.The formulation that said composition is prepared can also be water dispersible granules.
Preferably, the doractin in insecticides of the present invention is the composition containing doractin that Chinese patent application 2015101288326 (it includes reference herein in full, just looks like all repeat record in this article to go over) is recorded.Use the doractin of said composition cost not only than pure low, and the doractin that effect substantially identical (even can exceed) is pure.The described composition containing doractin can be prepared by the following method:
(1) streptomycete (preferably streptomycete D126 strain) is inoculated in the seed culture medium (formula of preferred described seed culture medium: glucose 15g, sucrose 5g, soybean meal 15g, dusty yeast 5g, pH 7.0,1L is settled to distilled water) middle cultivation (preferably with 30 DEG C of cultivations), obtain actication of culture thing;
(2) actication of culture thing is inoculated in the expansion medium (formula of preferred described expansion medium: glucose 10g, sucrose 10g, soybean meal 15g, dusty yeast 5g, pH 7.0,1L is settled to distilled water) middle cultivation (preferably with 30 DEG C of cultivations), obtain expansion culture;
(3) expansion culture is inoculated in fermentation medium (formula of preferred described fermentation medium: corn flour 50g, soybean meal 50g, CaCO
35g, NaCl 3g, K
2hPO
42g, MgSO
41g, vitamin h 0.05g, pH 7.0, is settled to 1L with distilled water) middle cultivation (preferably with 28 DEG C of cultivations), obtain fermentation culture medium; With,
(4) fermentation culture medium is filtered, retain thalline, add organic solvent (preferably alcohol, as methyl alcohol or ethanol), filter after lixiviate, collect filtrate and add the NaCl aqueous solution (the preferred saturated NaCl aqueous solution) and dilute organic solvent (preferably dilution organic solvent concentration to 15 ~ 35% (V/V)), filter after separating out precipitation, collecting precipitation is also dry.
Preferably in the method, the volume < of seed culture medium expands the volume of the volume < fermentation medium of medium, and the volume ratio of preferred seed medium, expansion medium and fermentation medium is 1: 15 ~ 25: 100 ~ 200; In step (4), the ratio (g/mL) of the weight of thalline and the volume of organic solvent is 1: 2 ~ 8, is preferably 1: 3 ~ 6; Be 75 ~ 85% containing the content of doractin in the composition of doractin, be preferably 77 ~ 83%; And/or the composition containing doractin also contains impurity A and impurity B, and the content of preferred impurity A is 6 ~ 9%, and also preferably the content of impurity B is 2 ~ 4%.Wherein, impurity A is the composition corresponding to peak at the 17 ~ 18min place on the HPLC collection of illustrative plates of the composition containing doractin prepared by the method; Impurity B is the composition corresponding to peak at the 12.9 ~ 13.9min place on the HPLC collection of illustrative plates of the composition containing doractin prepared by the method.As indicated without contrary, HPLC condition is: HPLC chromatographic column filler: Hypersil ODS2 5 μm; Chromatography column size: 4.6*250mm; Sample size: 20 μ l; Mobile phase (volume ratio): methyl alcohol: acetonitrile: water=67: 15: 18; Flow velocity: 1.0ml/min; Determined wavelength: 245nm.
Also preferably, the doractin in insecticides of the present invention is the composition containing doractin, and the described composition containing doractin comprises doractin and comprises impurity A and/or impurity B.
Suspending agent take water as the formulation development of matrix, has many obvious advantages:
1, Yi Shui instead of organic solvent and does the pollution that solvent decreases environment;
2, relatively production cost is reduced;
3, suspending agent particle is little, surface affinity strong, open up good penetrability, improves drug effect;
4, take water as the formulation of matrix, decrease packaging and the pollution in transportation, improve safety.
[embodiment] essence for a better understanding of the present invention, describes technology contents of the present invention in detail with its theory of constitution and embodiment below, but content of the present invention is not limited to this.
Suspending agent (Suspension Concentrates) is a kind of new liquid formulation developed in recent years, it take water as medium, by effects such as dispersion, emulsifications to water-fast effective active component, by homogenize technique, be dispersed in water, formed the thermodynamic stable system of oil-in-water type.Its advantage is:
(1) particle thin (VMD1-3 micron);
(2) good fluidity, is easy to metering;
(3) suspensibility high (more than 90-95%);
(4) wetability, spread, tackness are good, resistance of rainwater washing against;
(5) comparatively WP is high for biologically active, and the lasting period is long compared with missible oil, and drug effect is higher than missible oil;
(6) without dust, not containing solvent, thus produce, use relative with storing condition better, environmental pollution is few, and safety is high;
(7) there is good intermiscibility, be convenient to mix with the bucket such as other preparations, active component and auxiliary agent;
(8) processing charges is low, easy to use.
In addition, if add suitable binding agent in suspending agent and film forming agent, warning colouration etc. can make high performance pesticide seed coating (FS) easily; If suspending agent combines with aqueous emulsion (EW) and can be made into so-called suspension emulsion (SE), combine with microcapsules (CS) and can be made into so-called water and hang microcapsule formulations (ZC) etc.Be particularly suitable for effective compound of multiple different performance active component; Suspending agent more can be made into the water dispersible granules (WG) of high comprehensive performance through spray-fluidized-bed drying grain.
In order to make those of ordinary skill in the art understand the present invention better, the invention provides for preparation method of the present invention and providing a series of specific embodiment:
A, choose raw material according to the formula of doractin and pyrethroid (decis, fenpropathrin, Biphenthrin, beta-cypermethrin, gamma cyhalothrin etc.) mixture preparation;
B, each auxiliary agent all mixed and stirs, add doractin and pyrethroid (decis, fenpropathrin, Biphenthrin, beta-cypermethrin, gamma cyhalothrin etc.) former medicine while stirring;
C, stir after carry out sand milling to be joined in sand mill by above mixture;
Make above mixture reach required granula after D, sand milling 2-3 hour and namely obtain doractin and pyrethroid (decis, fenpropathrin, Biphenthrin, beta-cypermethrin, gamma cyhalothrin etc.) suspending agent.
Embodiment 1 5.5% doractin decis suspending agent
Each constituent content (by weight) is the former medicine 0.5% of doractin, deltamethrin original medicine 5%, wetting dispersing agent alkylphenol-polyethenoxy base ether formaldehyde condensation products phosphate 4%, alkyl naphthalene formaldehyde condensate sulfonates 2%, thickener xanthans 0.3%, polyvinyl alcohol 0.2%, stabilizing agent Sodium Benzoate 0.3%, antifreeze glycol 4%, silicone defoaming agent 0.2%, adds deionized water to 100%.By whole material mix and blend, after stirring, material is joined sand mill and carry out sand milling, make material reach requirement granula after sand milling 2-3 hour and namely obtain 5.5% doractin decis suspending agent.Qualified through inspection active constituent content, suspensibility 95%, screening (by 75 μm of sieves) 99.3%, persistent foamability (1min) 20mL, topple over rear residue 3.6%, residue 0.3% after washing, and acceleration heat storage stability is qualified.In force for preventing and treating citrus red mite 1000 times, control efficiency is 87-98%.
Embodiment 2 10.5% doractin Biphenthrin suspending agent
Its each constituent content (by weight) is the former medicine 0.5% of doractin, the former medicine 10% of Biphenthrin, wetting dispersing agent polyoxyethylene polyoxypropylene base ether block copolymers 3%, alkyl naphthalene formaldehyde condensate sulfonates 2%, thickener xanthans 0.3%, stabilizing agent sodium sorbate 0.3%, antifreezing agent propane diols 4%, silicone defoaming agent 0.2%, adds deionized water to 100%.By whole material mix and blend, after stirring, material is joined sand mill and carry out sand milling, make material reach requirement granula after sand milling 2-3 hour and namely obtain 10.5% doractin Biphenthrin suspending agent.Qualified through inspection active constituent content, suspensibility 96%, screening (by 75 μm of sieves) 98.6%, persistent foamability (1min), 18mL, topples over rear residue 3.3%, residue 0.3% after washing, and acceleration heat storage stability is qualified.In force for preventing and treating tea tree smaller green leaf hopper 2500 times, control efficiency is 91-99%.
Embodiment 3 10.6% doractin gamma cyhalothrin suspending agent
Its each constituent content (by weight) is the former medicine 0.6% of doractin, the former medicine 10% of gamma cyhalothrin, wetting dispersing agent polyoxyethylene polyoxypropylene base ether block copolymers 2%, phenethyl phenol polyethenoxy base ether phosphate 2%, thickener xanthans 0.3%, carboxymethyl cellulose 0.3%, stabilizing agent sodium sorbate 0.3%, antifreezing agent glycerine 3%, silicone defoaming agent 0.2%, adds deionized water to 100%.By whole material mix and blend, after stirring, material is joined sand mill and carry out sand milling, make material reach requirement granula after sand milling 2-3 hour and namely obtain 10.6% doractin gamma cyhalothrin suspending agent.Qualified through inspection active constituent content, suspensibility 93%, screening (by 75 μm of sieves) 98.1%, persistent foamability (1min), 19mL, topples over rear residue 3.1%, residue 0.4% after washing, and acceleration heat storage stability is qualified.In force for preventing and treating paddy rice rice leaf roller 1500 times, control efficiency is 93-99%.
Embodiment 4 10.8% doractin beta-cypermethrin suspending agent
Its each constituent content (by weight) is the former medicine 0.8% of doractin, the former medicine 10% of beta-cypermethrin, wetting dispersing agent alkylphenol-polyethenoxy base ether phosphate 4%, thickener xanthans 0.2%, polyvinyl alcohol 0.3%, stabilizing agent Sodium Benzoate 0.3%, antifreeze glycol 4%, silicone defoaming agent 0.2%, adds deionized water to 100%.By whole material mix and blend, after stirring, material is joined sand mill and carry out sand milling, make material reach requirement granula after sand milling 2-3 hour and namely obtain 10.8% doractin beta-cypermethrin suspending agent.Qualified through inspection active constituent content, suspensibility 93%, screening (by 75 μm of sieves) 98.9%, persistent foamability (1min), 16mL, topples over rear residue 3.9%, residue 0.3% after washing, and acceleration heat storage stability is qualified.In force for preventing and treating wild cabbage diamond-back moth, control efficiency is 90-99%.
Embodiment 5 11% doractin fenpropathrin suspending agent
Its each constituent content (by weight) is the former medicine 1% of doractin, the former medicine 10% of fenpropathrin, wetting dispersing agent phenethyl phenol polyethenoxy base ether phosphate (FLS) 4%, thickener xanthans 0.2%, aluminium-magnesium silicate 0.3%, antifreezing agent propane diols 4%, silicone defoaming agent 0.2%, adds deionized water to 100%.By whole material mix and blend, after stirring, material is joined sand mill and carry out sand milling, make material reach requirement granula after sand milling 2-3 hour and namely obtain 11% doractin fenpropathrin suspending agent.Qualified through inspection active constituent content, suspensibility 95%, screening (by 75 μm of sieves) 98.1%, persistent foamability (1min), 23mL, topples over rear residue 3.7%, residue 0.3% after washing, and acceleration heat storage stability is qualified.In force for preventing and treating citrus red mite 3000 times, control efficiency is 93-99%.
From above test data, described the present invention's combination, usage amount is less, and preventive effect is higher, has significant synergistic insecticidal action.
The doractin adopting formula of the present invention to process and pyrethroid (decis, fenpropathrin, Biphenthrin, beta-cypermethrin, gamma cyhalothrin etc.) suspending agent, its implementation result shows, this product has good intermiscibility, working substance suspensibility is high, and in use adhesion rate is high, the resistance of rainwater washing against lasting period is long, without dust, not containing solvent, thus produce, use relative with storing condition better, environmental pollution is few, and safety is high.The present invention not only increases the insecticidal spectrum of each active ingredient in production application, and improves the biologically active of active ingredient.Prove there is good control efficiency to the insect pest of multiple fruit tree and vegetable, mite evil through test; And safety is good, to crops without poisoning.
Claims (10)
1. a doractin and pyrethroid insecticides composition, it is characterized in that containing doractin and pyrethroid (decis, fenpropathrin, Biphenthrin, beta-cypermethrin, gamma cyhalothrin etc.), by active component doractin and pyrethroid (decis, fenpropathrin, Biphenthrin, beta-cypermethrin, gamma cyhalothrin etc.), and wetting dispersing agent, thickener, stabilizing agent, antifreezing agent, defoamer and deionized water are mixed with suspending agent, the percentage by weight of wherein said each component is:
。
2. insecticides according to claim 1, wherein, the optimum weight ratio of component doractin and pyrethroid pesticide is 1: 1-30.
3. the insecticides according to claim 1-2, is characterized in that described wetting dispersing agent is any one or more composition in alkyl naphthalene formaldehyde condensate sulfonates, alkylphenol polyoxyethylene formaldehyde condensation products phosphate (SOPA), alkylphenol polyoxyethylene phosphate (FLS), phenethyl phenol polyethenoxy base ether phosphate (2210), polyoxyethylene polyoxypropylene base ether block copolymers.
4. the insecticides according to claim 1-2, is characterized in that described thickener is xanthans, carboxymethyl cellulose, polyvinyl alcohol, bentonite, silicic acid buy one any in aluminium.
5. the insecticides according to claim 1-2, the stabilizing agent that it is characterized in that described in it is one or more in Sodium Benzoate, sodium sorbate, formaldehyde.
6. the insecticides according to claim 1-2, the antifreezing agent that it is characterized in that described in it is one or more of ethylene glycol, propane diols, glycerine etc.
7. the insecticides according to claim 1-2, is characterized in that the defoamer described in it is silicone based.
8. the insecticides according to claim 1-2, is characterized in that its formulation prepared can also be water dispersible granules.
9. insecticides according to claim 1, wherein, doractin is the composition containing doractin, and the described composition containing doractin comprises doractin and comprises impurity A and/or impurity B, wherein, impurity A is the composition corresponding to peak at the 17 ~ 18min place on HPLC collection of illustrative plates; Impurity B is the composition corresponding to peak at the 12.9 ~ 13.9min place on HPLC collection of illustrative plates.
10. insecticides according to claim 9, wherein, the described composition containing doractin is prepared by the following method:
(1) streptomycete is inoculated in seed culture medium (formula of preferred described seed culture medium: glucose 15g, sucrose 5g, soybean meal 15g, dusty yeast 5g, pH 7.0, is settled to 1L with distilled water) middle cultivation (preferably with 30 DEG C of cultivations), obtain actication of culture thing; (2) actication of culture thing is inoculated in the expansion medium (formula of preferred described expansion medium: glucose 10g, sucrose 10g, soybean meal 15g, dusty yeast 5g, pH 7.0,1L is settled to distilled water) middle cultivation (preferably with 30 DEG C of cultivations), obtain expansion culture;
(3) expansion culture is inoculated in fermentation medium (formula of preferred described fermentation medium: corn flour 50g, soybean meal 50g, CaCO
35g, NaCl 3g, K
2hPO
42g, MgSO
41g, vitamin h 0.05g, pH 7.0, is settled to 1L with distilled water) middle cultivation (preferably with 28 DEG C of cultivations), obtain fermentation culture medium; With,
(4) fermentation culture medium is filtered, retain thalline, add organic solvent (preferably alcohol, as methyl alcohol or ethanol), filter after lixiviate, collect filtrate and add the NaCl aqueous solution (the preferred saturated NaCl aqueous solution) and dilute organic solvent (preferably dilution organic solvent concentration to 15 ~ 35% (V/V)), filter after separating out precipitation, collecting precipitation is also dry.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265348A (en) * | 2018-10-31 | 2019-01-25 | 长乐巧通工业设计有限公司 | The compound gel pyrethrins and its manufacturing method of desert afforestation plantation |
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| CN1524420A (en) * | 2003-02-24 | 2004-09-01 | 李建中 | Pesticidal composition containing emamectin and pyrethroid compounds |
| CN101705194A (en) * | 2009-08-24 | 2010-05-12 | 东北农业大学 | Streptomyces bacterial strain |
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2015
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1524420A (en) * | 2003-02-24 | 2004-09-01 | 李建中 | Pesticidal composition containing emamectin and pyrethroid compounds |
| CN101705194A (en) * | 2009-08-24 | 2010-05-12 | 东北农业大学 | Streptomyces bacterial strain |
Non-Patent Citations (1)
| Title |
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| 崔占东等: "多拉菌素5%乳油防治甘蓝小菜蛾田间药效试验", 《农药科学与管理》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109265348A (en) * | 2018-10-31 | 2019-01-25 | 长乐巧通工业设计有限公司 | The compound gel pyrethrins and its manufacturing method of desert afforestation plantation |
| CN109265348B (en) * | 2018-10-31 | 2021-07-13 | 长乐巧通工业设计有限公司 | Compound gelled pyrethrin for desert greening planting and manufacturing method thereof |
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